* {
    padding: 0;
    margin: 0;
    text-decoration: none;
}

.box {
    margin: 0 50px;
}

.title {
    background-color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    z-index: 3;
    position: sticky;
    top: 0;
}

.title-menu > a, .call > a {
    text-decoration: none;
}

.title-logo > :nth-child(1) {
    width: 235px;
    height: 50px;
    margin-right: 10px;
}

.title-logo {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.title-menu {
    margin-left: 350px;
}

.title-menu > a {
    color: #333;
    font-size: 16px;
    margin: 0 40px 0 0;
}
.title-menu > a:hover{
    color: #3388ff;
}

.title > .call > a {
    display: inline-block;
    background-color: #3388ff;
    width: 140px;
    height: 40px;
    font-size: 16px;
    text-align: center;
    line-height: 40px;
    border-radius: 2px;
    color: #fff;
}
.title > .call > a:hover{
    background-color: #125ab3;
}